CN2093762U - Electric device for cleaning the blackboard - Google Patents
Electric device for cleaning the blackboard Download PDFInfo
- Publication number
- CN2093762U CN2093762U CN 91201728 CN91201728U CN2093762U CN 2093762 U CN2093762 U CN 2093762U CN 91201728 CN91201728 CN 91201728 CN 91201728 U CN91201728 U CN 91201728U CN 2093762 U CN2093762 U CN 2093762U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- brush
- screw rod
- driving
- cleaning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Abstract
The utility model discloses an electric device for cleaning the blackboard, comprising an electric motor, a chalk eraser and a driving device, wherein, the driving device is composed of a driving belt, a threaded rod and nuts, the chalk eraser is fixed to the nuts, and in addition, elastic casting dies are fixed to the nuts to ensure the chalk eraser is pressed to a blackboard. The utility model has the advantages of simple operation and reducible time of erasing blackboards.
Description
The utility model discloses a kind of electronic blackboard cleaning device.
Existing blackboard cleaning device all is manual generally.Promptly hold the brush operation with hand.Both bothered like this, time-consuming again, increased the workload that the teacher waits the personnel that give lectures, also wasted the teaching time, efficient and effect are not good.
The purpose of this utility model provides a kind of electronic blackboard cleaning device, its efficient height, effective.Both save time in classroom, alleviated teacher's labour intensity and workload again.
The utility model is to realize like this.Electronic blackboard cleaning device has motor and brush, particularly has with motor to be connected, to drive the transmission mechanism that brush moves, and the screw rod that said transmission mechanism is driven by driving-belt, driving-belt constitutes with the screw rod nut engaged, and said brush is fixed on the nut.Said screw rod can have two, and they are parallel to each other, and is driven synchronously by chain and rotates in the same way, and the interval of two screw rods is corresponding with blackboard.All right flexible casting die on the said nut, this elastic pressure parts provides a pressure to brush, makes brush press to blackboard, fits tightly with blackboard.
Description of drawings: accompanying drawing is a structural representation of the present utility model.Wherein (1) is that motor, (2) are that chain, (3) are that blackboard, (4) are that rigid bearing, (5) are that screw rod, (6) are that elastic pressure parts, (7) are that nut, (8) are brush.
During operation, press switch motor is rotated, make two screw rods do synchronous rotation in the same way by chain.Nut converts the rotation of screw rod to translation, drives brush and moves, and can clean off a blackboard, and the utility model is simple to operate, and the efficient height is effective, can significantly reduce the time that erases the board.
Claims (3)
1, a kind of electronic blackboard cleaning device, motor and brush are arranged, it is characterized in that having with motor being connected, driving the transmission mechanism that brush moves, said transmission mechanism is by the screw rod of driving-belt, driving-belt drive, constitute with the screw rod nut engaged, said brush is fixed on the nut.
2, electronic blackboard cleaning device according to claim 1 is characterized in that in the said transmission mechanism, screw rod has two, and they are parallel to each other, and is driven synchronously by chain and rotates in the same way, and the interval of two screw rods is corresponding with blackboard.
3, electronic blackboard cleaning device according to claim 1 is characterized in that having the elastic pressure parts that is fixed on the nut, and this elastic pressure parts provides a pressure to brush, makes brush press to blackboard, fit tightly with blackboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201728 CN2093762U (en) | 1991-01-26 | 1991-01-26 | Electric device for cleaning the blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201728 CN2093762U (en) | 1991-01-26 | 1991-01-26 | Electric device for cleaning the blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2093762U true CN2093762U (en) | 1992-01-22 |
Family
ID=4912431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91201728 Withdrawn CN2093762U (en) | 1991-01-26 | 1991-01-26 | Electric device for cleaning the blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2093762U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890417A (en) * | 2015-06-04 | 2015-09-09 | 浙江理工大学 | Full-automatic environment-friendly blackboard eraser |
| CN106739698A (en) * | 2017-02-07 | 2017-05-31 | 叶潇 | A kind of Accounting Course multi-functional blackboard Quick cleaning device |
| CN107933154A (en) * | 2017-11-21 | 2018-04-20 | 佛山汇众森泰科技有限公司 | Sassafras blackboard equipment is used in a kind of environmental protection and energy saving teaching |
-
1991
- 1991-01-26 CN CN 91201728 patent/CN2093762U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890417A (en) * | 2015-06-04 | 2015-09-09 | 浙江理工大学 | Full-automatic environment-friendly blackboard eraser |
| CN106739698A (en) * | 2017-02-07 | 2017-05-31 | 叶潇 | A kind of Accounting Course multi-functional blackboard Quick cleaning device |
| CN107933154A (en) * | 2017-11-21 | 2018-04-20 | 佛山汇众森泰科技有限公司 | Sassafras blackboard equipment is used in a kind of environmental protection and energy saving teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |